Methacholine challenge test

Your Doctor has ordered this test to help him determine if you have asthma and if so how severe. Methacholine is similar to a normal body substance that causes narrowing of the airways, if you have asthma. Prior to this test you will have performed a full Pulmonary Function test. This test’s results will be reviewed and the Cardio Respiratory secretary will contact you with the appointment time for the Methacholine Challenge test.